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1. Cosmic Ray Study at the Astrophysical Complex TAIGA: Results and Plans

Author

L. A. Kuzmichev, I. I. Astapov, P. A. Bezyazeekov, M. Blank, E. A. Bonvech, A. N. Borodin, M. Brueckner, N. M. Budnev, A. V. Bulan, D. V. Chernov, A. Chiavassa, A. N. Dyachok, A. R. Gafarov, A. Yu. Garmash, V. M. Grebenyuk, O. A. Gress, T. I. Gress, A. A. Grinyuk, O. G. Grishin, D. Horns, A. L. Ivanova, N. N. Kalmykov, V. V. Kindin, S. N. Kiryuhin, R. P. Kokoulin, K. G. Kompaniets, E. E. Korosteleva, V. A. Kozhin, E. A. Kravchenko, A. P. Kryukov, A. A. Lagutin, M. V. Lavrova, Yu. Lemeshev, B. K. Lubsandorzhiev, N. B. Lubsandorzhiev, A. D. Lukanov, D. Lukyantsev, R. R. Mirgazov, R. Mirzoyan, R. D. Monkhoev, E. A. Osipova, A. L. Pakhorukov, A. Pan, L. V. Pankov, A. D. Panov, A. A. Petrukhin, D. A. Podgrudkov, V. A. Poleschuk, E. G. Popova, A. Porelli, E. B. Postnikov, V. V. Prosin, V. S. Ptuskin, A. A. Pushnin, R. I. Raikin, A. Razumov, E. Rjabov, G. I. Rubtsov, Y. I. Sagan, V. S. Samoliga, A. Yu. Sidorenkov, A. A. Silaev, A. V. Skurikhin, M. Slunecka, A. V. Sokolov, Y. Suvorkin, L. G. Sveshnikova, V. A. Tabolenko, A. B. Tanaev, B. A. Tarashansky, M. Ternovoy, L. G. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. A. Volchugov, N. V. Volkov, D. Voronin, R. Wischnewski, I. I. Yashin, A. V. Zagorodnikov, and D. P. Zhurov

Subjects
Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics
Published
2021

2. Experimental Complex TAIGA

Author

N. Ushakov, N. B. Lubsandorzhiev, E. A. Kravchenko, Yu. Lemeshev, D. Chernykh, E. E. Korosteleva, Anatoly Lagutin, L. V. Pankov, A. Garmash, R. P. Kokoulin, A. V. Skurikhin, P. Volchugov, Andrey Sokolov, V. V. Prosin, D. A. Podgrudkov, A. L. Pakhorukov, Dmitry Chernov, M. Blank, A. Tanaev, L. G. Sveshnikova, L. G. Tkachev, E. A. Osipova, M. Slunechka, V.A. Tabolenko, Dieter Horns, M. Tluczykont, R. D. Monkhoev, I. I. Astapov, E. Popova, A. Chiavassa, A. Pushnin, M. Ternovoy, I. I. Yashin, A. N. Dyachok, Grigory Rubtsov, P. Bezyazykov, N. N. Kalmykov, D. Shipilov, M. Popesku, A. A. Petrukhin, A. Ivanova, Alexander Kryukov, Y. Sagan, A. Sidorenkov, Evgenii V Rjabov, V. Poleshchuk, D. Voronin, V. S. Ptuskin, Roman Raikin, B. A. Tarashchansky, Mikhail Panasyuk, O. A. Gress, V. Kiryukhin, A. Bulan, A. A. Grinyuk, V. A. Kozhin, V. V. Kindin, T. I. Gress, M. Brückner, R. R. Mirgazov, A. Pan, V. Samoliga, A. Vaidyanathan, Y. Kazarina, Oleg Fedorov, Dmitry Zhurov, A. Borodin, R. Mirzoyan, A. Porelli, A. Bonvech, K. G. Kompaniets, O. Grishin, Evgeny Postnikov, Aleksandr Gafarov, A. A. Silaev, A. V. Zagorodnikov, Bayarto Lubsandorzhiev, Y. Suvorkin, L. A. Kuzmichev, V. M. Grebenyuk, and R. Wischnewski

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, Taiga, Astronomy, 010306 general physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, Cherenkov radiation
Abstract

The astrophysical complex TAIGA (Tunka Advanced Instrument for cosmic-ray physics and Gamma-ray Astronomy), whose first phase is being completed in the Tunka valley 50 km from Lake Baikal, is described. Its research program, first results, and development prospects are discussed.

Published
2020

3. Status of the TAIGA Experiment: From Cosmic-Ray Physics to Gamma Astronomy in Tunka Valley

Author

Dmitry Chernov, A. V. Skurikhin, Andrey Sokolov, M. Slunecka, Grigory Rubtsov, N. N. Kalmykov, B. A. Tarashchansky, D. A. Podgrudkov, V. A. Poleschuk, Y. Suvorkin, P. Volchugov, A. L. Pakhorukov, Dieter Horns, N. M. Budnev, A. Tanaev, Roman Raikin, A. N. Dyachok, M. Tluczykont, A. A. Grinyuk, R. R. Mirgazov, A. Haungs, Evgeny Postnikov, N. B. Lubsandorzhiev, A. Pan, T. Marshalkina, Oleg Fedorov, V. Samoliga, V. S. Ptuskin, M. Kleifges, A. Chiavassa, Y. Sagan, R. Mirzoyan, A. Porelli, M. Brueckner, N. Ushakov, T. I. Gress, A. Borodin, V. Lenok, Aleksandr Gafarov, R. Togoo, A. Garmash, Dmitry Zhurov, A. A. Silaev, D. Kostyunin, L. G. Tkachev, A. V. Zagorodnikov, E. A. Osipova, V. Kiryuhin, E. V. Ryabov, Pavel Bezyazeekov, O. G. Grishin, D. Shipilov, A. Ivanova, E. Popova, O. A. Gress, L. G. Sveshnikova, A. Vaidyanathan, L. V. Pankov, B. K. Lubsandorzhiev, V. A. Kozhin, V. V. Kindin, M. Ternovoy, L. A. Kuzmichev, V. M. Grebenyuk, I. I. Astapov, R. Wischnewski, Mikhail Panasyuk, Frank G. Schröder, A. Pushnin, A. Bulan, A. Bonvech, K. G. Kompaniets, D. Voronin, V.A. Tabolenko, E. A. Kravchenko, D. Chernykh, E. E. Korosteleva, S. Malakhov, R. P. Kokoulin, A. A. Petrukhin, Yulia Kazarina, Ig. Yashin, Yu. Lemeshev, V. V. Prosin, Anatoly Lagutin, T. Huege, R. D. Monkhoev, Alexander Kryukov, and A. Sidorenkov

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Observatory, 0103 physical sciences, Taiga, Astronomy, Cosmic ray, Radiation, 010306 general physics, Hybrid approach, 01 natural sciences, Atomic and Molecular Physics, and Optics
Abstract

The importance and advantages of the hybrid approach developed within the TAIGA project for studying the high-energy section of the spectrum of gamma radiation in the Universe are discussed. The pilot complex of the TAIGA gamma observatory with an area of 1 km $${}^{2}$$ is briefly described along with the lines of its development, and the first results obtained on this basis are given.

Published
2020

4. Application of New Approximations of the Lateral Distribution of EAS Cherenkov Light in the Atmosphere

Author

R. R. Mirgazov, V. A. Poleschuk, N. B. Lubsandorzhiev, Oleg Fedorov, A. Pakhorukov, L. G. Tkachev, Evgeny Postnikov, A. V. Tkachenko, M. Slunecka, Bayarto Lubsandorzhiev, A. Borodin, Andrey Sokolov, E.G. Popova, O. A. Gress, L. G. Sveshnikova, Y. Sagan, R. D. Monkhoev, T. I. Gress, E. A. Osipova, V. V. Lenok, A. N. Dyachok, P. S. Kirilenko, O. G. Grishin, Pavel Bezyazeekov, V. Boreyko, M. Tluczykont, V. A. Kozhin, V. V. Kindin, K. G. Kompaniets, A. V. Skurikhin, R. Nachtigall, A. Porelli, R. Mirzoyan, A. Pushnin, L. V. Pankov, Valery Zurbanov, N. V. Gorbunov, B.A. Tarashansky, A. A. Lagutin, Roman Raikin, Aleksandr Gafarov, I. I. Yashin, V. P. Sulakov, M. Popesku, Dieter Horns, A. Sidorenkov, A. A. Grinyuk, A. A. Silaev, Yu. A. Semeney, V. Samoliga, C. Spiering, Mikhail Panasyuk, Aleksey Zagorodnikov, M. Kunnas, V. S. Ptuskin, A. Chiavassa, E. A. Kravchenko, V. Prosin, A. Ivanova, N. I. Karpov, R. Wischnewski, L. A. Kuzmichev, V. M. Grebenyuk, A. A. Petrukhin, A. Sh. M. Elshoukrofy, Yulia Kazarina, N. M. Budnev, S. Kiryuhin, V.A. Tabolenko, E. E. Korosteleva, A. Garmash, Hussein A. Motaweh, R. P. Kokoulin, I. I. Astapov, Grigory Rubtsov, and N. N. Kalmykov

Subjects
Physics, Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Probability density function, 01 natural sciences, Electromagnetic radiation, Atomic and Molecular Physics, and Optics, Computational physics, Massless particle, Distribution function, 0103 physical sciences, Range (statistics), 010303 astronomy & astrophysics, Cherenkov radiation
Abstract

A new knee-like approximation of the lateral distribution function (LDF) of EAS Cherenkov light in the 30–3000 TeV energy range was proposed and tested with simulated showers in our earlier studies. This approximation fits the LDFs of individual showers accurately for all types of primary particles gamma-rays, protons, and nuclei) and is suitable for reconstructing the shower core, determining the energy, and separating gamma-induced showers from hadron-induced ones. In the present study, the knee-like fitting function is used to determine the parameters of real showers detected by TAIGA-HiSCORE. It is demonstrated that this approximation characterizes properly all types of individual LDFs of experimental events in the 300–1000 TeV range. The accuracy of fit is governed by fluctuations intrinsic to the process of measurement of the Cherenkov photon density. The probability density function of these fluctuations was reconstructed and introduced into simulations. Certain useful methodical applications of the knee-like approximation are con-sidered, and the possibility of shower sorting into nuclei groups is examined. The extensive statistical coverage and detailed LDF measurement data of HiSCORE have provided the first opportunity to examine in depth the LDF of Cherenkov radiation in the 300–1000 TeV range.

Published
2018

5. Optimization of electromagnetic and hadronic extensive air shower identification using the muon detectors of the TAIGA experiment

Author

K. G. Kompaniets, A. Chiavassa, V.A. Tabolenko, Valery Zurbanov, R. R. Mirgazov, E. A. Kravchenko, E. E. Korosteleva, R. P. Kokoulin, M. Kunnas, O. Grishin, Anatoly Lagutin, T. I. Gress, Oleg Fedorov, D. Voronin, Aleksandr Gafarov, L. G. Tkachev, A. V. Skurikhin, I. I. Astapov, R. Nachtigall, V. V. Lenok, A. A. Silaev, A. V. Zagorodnikov, A. Borodin, Evgeny Postnikov, B.A. Tarashansky, E. A. Osipova, V. Slunecka, A. Krykov, V. S. Ptuskin, A. Silaev junior, E.G. Popova, Dieter Horns, A. Porelli, R. D. Monkhoev, B. M. Sabirov, Pavel Bezyazeekov, V. Boreyko, I. I. Yashin, A. L. Pakhorukov, Mihai Popescu, R. Wischnewski, V. A. Poleschuk, D. Zhurov, M. Brueckner, A. Sidorenkov, L. A. Kuzmichev, V. M. Grebenyuk, A. Garmash, Yu. A. Semeney, Grigory Rubtsov, N. N. Kalmykov, A. Ivanova, Bayarto Lubsandorzhiev, N. V. Gorbunov, Evgenii V Rjabov, A. V. Tkachenko, Yu. Lemeshev, P. Kirilenko, Roman Raikin, N. M. Budnev, V. Samoliga, A. Vaidyanathan, S. Kiryuhin, V. V. Prosin, A. A. Grinyuk, O. A. Gress, C. Spiering, V. A. Kozhin, V. V. Kindin, A. A. Petrukhin, Y. Sagan, M. Tluczykont, Yulia Kazarina, L. G. Sveshnikova, Andrey Sokolov, A. Pushnin, N. B. Lubsandorzhiev, N. Ushakov, L. V. Pankov, A. N. Dyachok, Mikhail Panasyuk, and R. Mirzoyan

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), TAIGA, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Scintillator, Wavelength shifter, Nuclear physics, Air shower, Scintillation detectors, High Energy Physics::Experiment, Instrumentation
Abstract

The TAIGA experiment in the Tunka valley near Lake Baikal is planning an extension with new TAIGA-Muon scintillation detector stations. The main purpose of TAIGA is gamma-ray astronomy in the TeV to PeV energy range and cosmic ray physics. The purpose of the Taiga-Muon detectors is to measure the muon component of air showers for improving cosmic ray composition measurements as well as gamma–hadron separation above 100 TeV. Monte Carlo simulations of the experiment are done with the software packages CORSIKA and GEANT4. Extensive air showers of primary particles in the energy range 100–3000 TeV are created with CORSIKA. The trigger efficiency is calculated and used for optimization. The suppression factor of hadronic showers versus electromagnetic showers is studied, leading to an optimum depth of soil absorber (2 m), at the lowest energy range. Data on the identification efficiency for primary gamma-quanta and proton events are presented as well as the suppression factor.

Published
2020

6. Cherenkov EAS arrays in the Tunka astrophysical center: From Tunka-133 to the TAIGA gamma and cosmic ray hybrid detector

Author

R. R. Mirgazov, A. Chiavassa, V. Prosin, Oleg Fedorov, A. Borodin, L. G. Sveshnikova, A. V. Skurikhin, Evgeny Postnikov, E.G. Popova, O. G. Grishin, Dieter Horns, Martin Tluczykont, M. Slunecka, D. Zhurov, Bayarto Lubsandorzhiev, V.A. Tabolenko, A. V. Tkachenko, N. B. Lubsandorzhiev, A. Grinyuk, E. A. Kravchenko, V. Samoliga, E. A. Osipova, K. G. Kompaniets, Razmik Mirzoyan, E. E. Korosteleva, V. Kiryuhin, Pavel Bezyazeekov, Alexander Kryukov, A. Sidorenkov, A. Garmash, Valery Zurbanov, Aleksandr Gafarov, R. P. Kokoulin, Grigory Rubtsov, N. N. Kalmykov, A. A. Silaev, A. Pan, A. A. Petrukhin, Aleksey Zagorodnikov, M. Brückner, R. D. Monkhoev, T. I. Gress, A. Pushnin, Anatoly Lagutin, D. Voronin, E. V. Ryabov, Victor Grebenyuk, L. Tkachev, A. Pakharukov, I. I. Astapov, Roman Raikin, Ralf Wischnewski, L. A. Kuzmichev, V. V. Lenok, A. Porelli, Yu. A. Semeney, P. Kirilenko, A. N. Dyachok, Ch. Spiering, N. Ushakov, L. V. Pankov, Y. Sagan, I. V. Yashin, M. Popesku, V. S. Ptuskin, O. A. Gress, V. A. Kozhin, V. V. Kindin, V. A. Poleschuk, Mikhail Panasyuk, Y. Kazarina, B.A. Tarashansky, Andrey Sokolov, and N. M. Budnev

Subjects
Physics, Nuclear and High Energy Physics, Gamma-ray astronomy, Calorimeter (particle physics), 010308 nuclear & particles physics, Aperture, Cosmic rays, EAS Cherenkov light array, Energy spectrum, IACT, Detector, Gamma ray, Astronomy, Cosmic ray, 01 natural sciences, 7. Clean energy, 13. Climate action, 0103 physical sciences, 010303 astronomy & astrophysics, Instrumentation, Cherenkov radiation
Abstract

One of the most informative methods of cosmic ray studies is the detection of Cherenkov light from extensive air showers (EAS). The primary energy reconstruction is possible by using the Earth’s atmosphere as a huge calorimeter . The EAS Cherenkov light array Tunka-133, with ∼ 3 km 2 geometrical area, is taking data since 2009. Tunka-133 is located in the Tunka Astrophysical Center at ∼ 50 km west of Lake Baikal. This array allows us to perform a detailed study of the energy spectrum and the mass composition in the energy range from 6 ⋅ 1 0 15 eV to 1 0 18 eV . Most of the ongoing efforts are focused on the construction of the first stage of the detector TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy). The latter is designed for the study of gamma rays and charged cosmic rays in the energy range of 1 0 13 eV – 1 0 18 eV . The TAIGA prototype will consist of ∼ 100 wide angle timing Cherenkov stations (TAIGA-HiSCORE) and three IACTs deployed over an area of ∼ 1 km 2 . The installation of the array is planned to be finished in 2019 while the data-taking can start already during the commissioning phase. The joint reconstruction of energy, direction, and core position of the imaging and non-imaging detectors will allow us to increase the distance between the IACTs up to 800 m, therefore providing a low-cost, highly sensitive detector. The relatively low cost together with the high sensitivity for energies ≥ 30–50 TeV make this pioneering technique very attractive for exploring galactic PeVatrons and cosmic rays. In addition to the Cherenkov light detectors we intend to deploy surface and underground muon detectors over an area of 1 km 2 with a total area of about 1000 m 2 . The results of the first season of coincident operation of the first ∼ 4 m diameter IACT with an aperture of ∼ 10°with 30 stations of TAIGA-HiSCORE will be presented.

Published
2020

7. The TAIGA Experiment: From Cosmic Ray Physics to Gamma Astronomy in the Tunka Valley

Author

L. V. Pankov, Evgeny Postnikov, E. A. Osipova, Yu. Lemeshev, V. S. Ptuskin, A. Pushnin, Pavel Bezyazeekov, V.A. Tabolenko, S. Kiryuhin, L. A. Kuzmichev, V. M. Grebenyuk, Yu. A. Semeney, V. Prosin, M. Slunecka, Bayarto Lubsandorzhiev, B.A. Tarashansky, V. A. Poleschuk, Mikhail Panasyuk, E. I. Kravchenko, N. B. Lubsandorzhiev, N. V. Gorbunov, K. G. Kompaniets, Grigory Rubtsov, N. N. Kalmykov, P. Kirilenko, E. E. Korosteleva, Dmitriy Kostunin, R. Mirzoyan, O. A. Gress, R. P. Kokoulin, A. Pakhorukov, Y. Kazarina, L. G. Tkachev, V. A. Kozhin, A. A. Petrukhin, V. V. Kindin, V. V. Lenok, E.G. Popova, V. Samoliga, A. Ivanova, A. Yu. Sidorenkov, N. M. Budnev, Aleksey Zagorodnikov, A. O. Skurikhin, Andrey Sokolov, I. I. Astapov, A. A. Grinyuk, Y. Sagan, A. V. Boreyko, A. N. Dyachok, L. G. Sveshnikova, A. Yu. Garmash, Dmitry Zhurov, O. G. Grishin, R. D. Monkhoev, T. I. Gress, A. V. Tkachenko, E. V. Ryabov, Aleksandr Gafarov, A. A. Silaev, R. R. Mirgazov, Valery Zurbanov, Oleg Fedorov, A. Borodin, B. M. Sabirov, and I. I. Yashin

Subjects
Physics, Nuclear and High Energy Physics, Muon, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Electron, Radiation, 01 natural sciences, Observatory, 0103 physical sciences, 010303 astronomy & astrophysics, Cherenkov radiation
Abstract

The article presents the relevance and advantages of the new gamma observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy), which is being constructed in the Tunka Valley 50 km from Lake Baikal. Various detectors of the six TAIGA gamma observatory arrays register the Cherenkov and radio radiation, as well as the electron and muon components of EAS. The primary objective of the TAIGA gamma observatory is to study the high-energy part of the gamma-ray spectrum, in particular, in order to search for Galactic PeVatrons. The energy, direction, and position of the EAS axis are reconstructed in the observatory based on the data of the wide-angle Cherenkov detectors of the TAIGA-HiSCORE experiment. Taking into account this information, the gamma quanta are distinguished from the hadron background using the data obtained by the muon detectors and telescopes that register the EAS image in the Cherenkov light. In this hybrid mode of operation, the atmospheric Cherenkov telescopes can operate in the mono-mode, and the distance between them can be increased to 800–1000 m, which makes it possible to construct an array with an area of 5 km2 and more at relatively low cost and in a short time. By 2019, the first stage of the gamma observatory with an area of 1 km2 will be constructed; its expected integral sensitivity for detecting the gamma radiation with an energy of 100 TeV at observation of the source for 300 hours will be approximately $$2 \times 5$$ 10–13 TeV cm–2s–1.

Published
2018

8. TAIGA Gamma Observatory: Status and Prospects

Author

M. Kunnas, Roman Raikin, Aleksey Zagorodnikov, A. A. Grinyuk, K. G. Kompaniets, V. Samoliga, A. V. Skurikhin, Evgeny Postnikov, A. N. Dyachok, Y. Sagan, B.A. Tarashansky, S. Kiryuhin, L. A. Kuzmichev, R. Wischnewski, V. M. Grebenyuk, L. V. Pankov, M. Slunecka, N. B. Lubsandorzhiev, Bayarto Lubsandorzhiev, A. V. Tkachenko, R. D. Monkhoev, T. I. Gress, V. A. Poleschuk, M. Popesku, L. G. Sveshnikova, V. S. Ptuskin, R. Nachtigall, E. A. Osipova, A. Chiavassa, V. Prosin, N. I. Karpov, O. A. Gress, M. Tluczykont, Pavel Bezyazeekov, V. Boreyko, O. G. Grishin, V. A. Kozhin, A. Pakhorukov, V. V. Kindin, L. G. Tkachev, Aleksandr Gafarov, N. V. Gorbunov, A. A. Silaev, Valery Zurbanov, A. Pushnin, R. R. Mirgazov, Oleg Fedorov, A. Borodin, E. A. Kravchenko, A. A. Petrukhin, E. E. Korosteleva, A. Sh. M. Elshoukrofy, A. Ivanova, Yulia Kazarina, A. Garmash, R. P. Kokoulin, V.A. Tabolenko, E.G. Popova, V. P. Sulakov, Yu. A. Semeney, A. D. Horns, V. V. Lenok, A. Porelli, P. Kirilenko, C. Spiering, Andrey Sokolov, I. I. Yashin, A. Sidorenkov, Anatoly Lagutin, Grigory Rubtsov, N. N. Kalmykov, I. I. Astapov, N. M. Budnev, R. Mirzoyan, and Mikhail Panasyuk

Subjects
Physics, Nuclear and High Energy Physics, Muon, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Astronomy, IACT, Cosmic ray, 01 natural sciences, Atomic and Molecular Physics, and Optics, Particle detector, Observatory, 0103 physical sciences, Measuring instrument, 010303 astronomy & astrophysics, Cherenkov radiation
Abstract

Over the past few years, the TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma-ray Astronomy) observatory has been being deployed in the Tunka Valley, Republic of Buryatia. It is designed for studying gamma rays of energy above 30 TeV and performing searches for sources of galactic cosmic rays with energies in the vicinity of 1 PeV, which is an energy region around the classic knee in the cosmic-ray energy spectrum. The first phase of the observatory will be situated at a distance of about 50 km from Lake Baikal at the site of the Tunka-133 array. The TAIGA gamma observatory will include a network of 500 wide-angle (0.6 sr) Cherenkov detectors (TAIGA-HiSCORE array) and up to 16 atmospheric Cherenkov telescopes (ACT) designed for analyzing the EAS images (imaging atmospheric Cherenkov telescopes, or IACT) and positioned within an area of 5 km2. The observatory will also include muon detectors of total area 2000 m2 distributed over an area of 1 km2. Within the next three years, it is planned to enhance the area of the TAIGA-HiSCORE array by a factor of four—from 0.25 km2 to 1 km2; to supplement the existing IACT with two new ones; and to deploy new muon detectors with a total coverage of 200 m2. The structure of the new observatory is described along with the data analysis techniques used. The most interesting physical results are presented, and the research program for the future is discussed.

Published
2018

9. Scintillation detectors for the TAIGA experiment

Author

Evgeny Postnikov, Yu. A. Semeney, P. Kirilenko, V.A. Tabolenko, V. V. Lenok, Bayarto Lubsandorzhiev, A. Porelli, L. A. Kuzmichev, Aleksandr Gafarov, M. Kunnas, V. M. Grebenyuk, D. Zhurov, Andrey Sokolov, R. R. Mirgazov, E. A. Kravchenko, Valery Zurbanov, A. A. Petrukhin, Aleksey Zagorodnikov, A. A. Grinyuk, A. Chiavassa, V. Prosin, Mikhail Panasyuk, E. E. Korosteleva, B.A. Tarashansky, A. A. Silaev, V. Samoliga, A. Garmash, R. P. Kokoulin, M. Brueckner, Yulia Kazarina, R. D. Monkhoev, T. I. Gress, E. A. Osipova, L. G. Sveshnikova, V. A. Poleschuk, R. Mirzoyan, A. V. Skurikhin, Oleg Fedorov, Pavel Bezyazeekov, A. Ivanova, R. Nachtigall, A. Pakhorukov, L. G. Tkachev, N. M. Budnev, Yu. Lemeshev, E.G. Popova, N. V. Gorbunov, Dieter Horns, M. Tluczykont, K. G. Kompaniets, I. I. Astapov, A. Borodin, S. Kiryuhin, Grigory Rubtsov, N. N. Kalmykov, O. Grishin, L. V. Pankov, A. N. Dyachok, M. V. Lavrova, A. Vaidyanathan, C. Spiering, O. A. Gress, V. A. Kozhin, V. V. Kindin, Evgenii V Rjabov, R. Wischnewski, M. Popesku, V. Slunecka, V. S. Ptuskin, N. B. Lubsandorzhiev, B. M. Sabirov, I. I. Yashin, A. Sidorenkov, A. Pushnin, and Y. Sagan

Subjects
Physics, Nuclear and High Energy Physics, Scintillation, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, Scintillator, Wavelength shifter, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Instrumentation, Remote sensing
Abstract

It is planned that new TAIGA-Muon detectors will complement the existing Tunka-GRANDE facility of scintillation detectors of the TAIGA gamma-observatory in the Tunka valley, Russia. The new design of scintillation detector with wavelength shifting bars and PMTs is developed. The first prototype of the counter was installed and tested using infrastructure of the Tunka-GRANDE installation in 2017. The mass production of counters has begun in 2018 at the Novosibirsk State University.

Published
2019

10. Neutrino signal at Baikal from dark matter in the Galactic Center

Author

M.B. Milenin, D.Yu. Bogorodsky, B.A. Tarashansky, V.I. Ljashuk, A.V. Avrorin, A. I. Panfilov, Aleksandr Gafarov, O.G. Kebkal, V. A. Kozhin, A.V. Korobchenko, A.P. Koshechkin, M.I. Rozanov, A. V. Zagorodnikov, Mark Shelepov, B.A. Shaybonov, V.B. Brudanin, A.D. Avrorin, N. M. Budnev, G.V. Domogatsky, R. R. Mirgazov, O. N. Gaponenko, A.A. Smagina, A. N. Dyachok, E.N. Pliskovsky, V.F. Kulepov, Evgenii V Rjabov, D.A. Kuleshov, K.V. Golubkov, F.K. Koshel, Valery Zurbanov, K.V. Konischev, T. I. Gress, I. A. Belolaptikov, Konstantin Kebkal, A.V. Skurihin, A.A. Sheifler, E. A. Osipova, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, R. Bannasch, S.V. Fialkovsky, V. A. Zhukov, Olga Suvorova, L. V. Pankov, I. A. Danilchenko, V. M. Aynutdinov, Sergey Yakovlev, Zdenek Hons, and Sergei Demidov

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Galactic Center, Dark matter, Scalar field dark matter, Astronomy, Elementary particle, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Galaxy, Massless particle, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, 010306 general physics, Astrophysics::Galaxy Astrophysics, Lepton
Abstract

We discuss neutrinos originating from dark matter in the Galactic Center and present sensitivity of Baikal Gigaton Volume Detector to this signal.

Published
2016

11. Data acquisition system for the Baikal-GVD neutrino telescope

Author

R. R. Mirgazov, V. M. Aynutdinov, O. N. Gaponenko, A. A. Doroshenko, Sergey Yakovlev, D.Yu. Bogorodsky, A.V. Korobchenko, B. A. Tarashchansky, Zh.-A.M. Dzhilkibaev, I. A. Belolaptikov, Konstantin Kebkal, V.A. Tabolenko, A. V. Skurikhin, V.B. Brudanin, R. Bannasch, A.A. Smagina, S.V. Fialkovsky, K.V. Golubkov, A.D. Avrorin, Zdenek Hons, V. A. Zhukov, G.V. Domogatsky, N. M. Budnev, E.N. Pliskovsky, A.A. Sheifler, I. A. Danilchenko, A. I. Panfilov, D.A. Kuleshov, Valery Zurbanov, O.G. Kebkal, F.K. Koshel, A. N. Dyachok, K.V. Konischev, M.I. Rozanov, T. I. Gress, E. V. Ryabov, Olga Suvorova, L. V. Pankov, A.P. Koshechkin, A.V. Avrorin, B. A. Shaibonov, Aleksandr Gafarov, M.B. Milenin, A. V. Zagorodnikov, V.F. Kulepov, E. A. Osipova, V. A. Kozhin, and V. I. Lyashuk

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Neutrino telescope, Detector, Volume (computing), Astrophysics, 01 natural sciences, Data acquisition, Neutrino detector, 0103 physical sciences, Neutrino, 010306 general physics, Digitization, Remote sensing, Data transmission
Abstract

The objective of the Baikal-GVD project is the construction of a km3-scale neutrino telescope in Lake Baikal. The Gigaton Volume Detector consists of a large three-dimensional array of photo-multiplier tubes. The first GVD-cluster has been deployed and commissioned in April 2015. The data acquisition system (DAQ) of the detector takes care of the digitization of the photo-multiplier tube signals, data transmission, filtering and storage. The design and the implementation of the data acquisition system are described.

Published
2016

12. Status of the early construction phase of Baikal-GVD

Author

Aleksandr Gafarov, A. V. Zagorodnikov, A.P. Koshechkin, I. A. Danilchenko, A. I. Panfilov, O.G. Kebkal, T. I. Gress, M.I. Rozanov, A. A. Perevalov, E.N. Pliskovsky, D.A. Kuleshov, F.K. Koshel, A.A. Sheifler, A.D. Avrorin, A. V. Skurikhin, K. V. Konishchev, V.F. Kulepov, G.V. Domogatsky, D. Bogorodsky, A.V. Korobchenko, N. M. Budnev, B. Shaibonov, V. M. Aynutdinov, V.F. Rubtsov, A.A. Smagina, V.B. Brudanin, M.B. Milenin, Sergey Yakovlev, E. A. Osipova, Z. Honz, Valery Zurbanov, Olga Suvorova, L. V. Pankov, R. R. Mirgazov, A. A. Doroshenko, O. N. Gaponenko, Zh.-A.M. Dzhilkibaev, Evgenii V Rjabov, V. A. Kozhin, B. A. Tarashchansky, A. N. Dyachok, V.I. Ljashuk, A.V. Avrorin, V. A. Poleschuk, E. N. Konstantinov, I. A. Belolaptikov, Konstantin Kebkal, R. Bannasch, S.V. Fialkovsky, V. A. Zhukov, and K.V. Golubkov

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Positioning system, Physics::Instrumentation and Detectors, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Neutrino telescope, Astrophysics::Instrumentation and Methods for Astrophysics, Phase (waves), Astronomy, Cluster (spacecraft), 01 natural sciences, Software deployment, 0103 physical sciences, Instrumentation (computer programming), Neutrino telescopes, Lake Baikal, Aerospace engineering, Neutrino, 010306 general physics, business, 010303 astronomy & astrophysics, Cherenkov radiation
Abstract

The second-stage neutrino telescope BAIKAL-GVD in Lake Baikal will be a research infrastructure aimed mainly at studying astrophysical neutrino fluxes by recording the Cherenkov radiation of the secondary muons and showers generated in neutrino interactions. The prototyping/early construction phase of the BAIKAL-GVD project which is directed towards deployment and operation of the first demonstration cluster has been started in April 2011. An important step on realization of the GVD project was made in 2014 by the deployment of the second stage of the demonstration cluster which contains 112 OMs arranged on five strings, as well as equipment of an acoustic positioning system and instrumentation string with an array calibration and environment monitoring equipment. Deployment of the demonstration cluster will be completed in 2015.

Published
2016
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13. TAIGA—A hybrid array for high-energy gamma astronomy and cosmic-ray physics

Author

A. A. Petrukhin, E. A. Osipova, A. V. Skurikhin, A. Grinyuk, E. A. Kravchenko, D. Chernykh, E. E. Korosteleva, A. Garmash, R. P. Kokoulin, Dmitry Zhurov, Pavel Bezyazeekov, R. R. Mirgazov, B. A. Tarashchansky, Dieter Horns, Evgeny Postnikov, M. Popesku, Y. Suvorkin, Martin Tluczykont, S. Kiryuhin, Razmik Mirzoyan, O. Fedorov, V.A. Tabolenko, Konstantin Ustinov, A. Pakhorukov, A. Borodin, Aleksey Zagorodnikov, A. Chiavassa, V. Prosin, Valery Zurbanov, Bayarto Lubsandorzhiev, M. Slunecka, Y. Kazarina, L. G. Sveshnikova, I. V. Yashin, V. S. Ptuskin, Yaroslav Sagan, A. Pushnin, R. D. Monkhoev, Victor Grebenyuk, T. I. Gress, Dmitriy Kostunin, O. A. Gress, V. A. Poleschuk, N. M. Budnev, A. Silaev junior, E.G. Popova, A. Pan, D. Voronin, V. A. Kozhin, E. V. Ryabov, I. I. Astapov, V. V. Kindin, L. Tkachev, Roman Raikin, V. Samoliga, Ralf Wischnewski, L. A. Kuzmichev, A. Porelli, A. N. Dyachok, O. G. Grishin, Grigory Rubtsov, N. N. Kalmykov, Ch. Spiering, N. B. Lubsandorzhiev, A. Vaidyanathan, N. Ushakov, L. V. Pankov, K. Komponiets, A. Ivanova, Mikhail Panasyuk, Aleksandr Gafarov, A. A. Silaev, Alexander Kryukov, A. Sidorenkov, M. Brückner, Anatoly Lagutin, and A. Sokolov

Subjects
Physics, Nuclear and High Energy Physics, High energy, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, 7. Clean energy, 01 natural sciences, Observatory, Hybrid array, 0103 physical sciences, 010306 general physics, Instrumentation, Cherenkov radiation
Abstract

The combination of a wide angle timing Cherenkov array and Imaging Atmospheric Cherenkov Telescopes operated in mono mode offers a cost-effective way to construct a few square kilometers array for ultrahigh-energy gamma astronomy. The first stage of the TAIGA Observatory (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) is described here. It will comprise TAIGA-HiSCORE - 120 wide angle Cherenkov stations distributed over an area of 1.0 km2 and three IACTs (TAIGA-IACT).

Published
2020

14. Status and recent results of the BAIKAL-GVD project

Author

V.B. Brudanin, I. A. Danilchenko, R. R. Mirgazov, D.Yu. Bogorodsky, A. V. Skurikhin, A.A. Smagina, A. A. Doroshenko, A. A. Perevalov, Zh.-A.M. Dzhilkibaev, A.D. Avrorin, K. V. Konishchev, I. A. Belolaptikov, Konstantin Kebkal, G.V. Domogatsky, T. I. Gress, N. M. Budnev, E. A. Osipova, E.N. Pliskovsky, A.A. Sheifler, Zdenek Hons, A. I. Panfilov, D.A. Kuleshov, A.P. Koshechkin, O.G. Kebkal, E. N. Konstantinov, Valery Zurbanov, V. Yu. Rubtsov, M.I. Rozanov, F.K. Koshel, Aleksandr Gafarov, R. Bannasch, S.V. Fialkovsky, A. V. Zagorodnikov, A.V. Korobchenko, V. M. Aynutdinov, V. A. Zhukov, Sergey Yakovlev, B.A. Shaybonov, V.F. Kulepov, A. N. Dyachok, Olga Suvorova, L. V. Pankov, V. A. Kozhin, M.B. Milenin, O. N. Gaponenko, Evgenii V Rjabov, B. A. Tarashchansky, V.I. Ljashuk, A.V. Avrorin, K.V. Golubkov, and V.A. Poleshuk

Subjects
Physics, Nuclear and High Energy Physics, business.industry, Software deployment, Detector, business, Computer hardware
Abstract

The Prototyping phase of the BAIKAL-GVD project has been started in April 2011 with the deployment of first autonomous engineering array which comprises all basic elements and systems of the Gigaton Volume Detector (GVD) in Lake Baikal. The prototyping phase will be concluded with deployment of the GVD demonstration cluster “DUBNA” in 2015, which will comprise 192 light sensors arranged at 8 strings. The first stage of the GVD demonstration cluster which consists of three strings was deployed in April 2013 and successfully operated up to February 2014. We review the prototyping phase of the BAIKAL-GVD project and describe the configuration and design of the 2013 engineering array.

Published
2015

15. The TAIGA experiment: From cosmic-ray to gamma-ray astronomy in the Tunka valley

Author

A. Haungs, N. B. Lubsandorzhiev, V. Samoliga, Grigory Rubtsov, N. N. Kalmykov, M. Brückner, A Saunkin, E. A. Osipova, D. Voronin, E.G. Popova, Pavel Bezyazeekov, V. Boreyko, O. G. Grishin, R. Hiller, B. K. Lubsandorzhiev, V. A. Poleschuk, A. N. Dyachok, N. V. Gorbunov, N Kirichkov, E. A. Kravchenko, L. Sveshnikova, E. E. Korosteleva, M. Kunnas, N. Karpov, E. Rybov, A. Pakhorukov, R. P. Kokoulin, R. D. Monkhoev, T. I. Gress, E. Fedoseev, A. V. Tkachenko, A. G. Bogdanov, R. Mirzoyan, A. Pushnin, Aleksandr Gafarov, M. Kleifges, R. R. Mirgazov, V.A. Tabolenko, A. Ivanova, Evgeny Postnikov, N. S. Barbashina, V Platonov, A. A. Silaev, A. V. Zagorodnikov, Oleg Fedorov, Y. Kazarina, K. O. Yurin, L. V. Pankov, A. A. Grinyuk, I. I. Astapov, Dmitriy Kostunin, O. A. Gress, V. Zirakashvili, B. A. Tarashchansky, V. A. Kozhin, O. Chvalaev, S.G. Pivovarov, Yu. A. Tikhonov, V. S. Ptuskin, F.G. Schröder, M. Tluczykont, R. Wischnewski, T. Huege, C. Spiering, Andrey Sokolov, N. M. Budnev, I. I. Yashin, A. Barnyakov, Valery Zurbanov, L. G. Tkachev, K. G. Kompaniets, Yu. A. Semeney, V. V. Lenok, A. Porelli, P. Kirilenko, A. V. Skurikhin, L. A. Kuzmichev, V. M. Grebenyuk, R. Nachtigall, Dieter Horns, A. Chiavassa, A. A. Perevalov, A. A. Petrukhin, S. Epimakhov, S. Kiryuhin, V. V. Prosin, and M. I. Panasyuk

Subjects
Nuclear and High Energy Physics, TAIGA, Physics::Instrumentation and Detectors, Cherenkov detector, Astrophysics::High Energy Astrophysical Phenomena, Cosmic ray, IACT, Astrophysics, 01 natural sciences, law.invention, Observatory, law, 0103 physical sciences, 010303 astronomy & astrophysics, Instrumentation, Cherenkov radiation, Physics, Muon, Gamma astronomy, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Astronomy, Gamma-ray astronomy
Abstract

We present physical motivations and advantages of the new gamma-observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics and gamma-ray astronomy). TAIGA will be located in the Tunka valley, 50 km to the west of Lake Baikal, at the same place as the integrating air Cherenkov detector for cosmic rays Tunka-133. The TAIGA array is a complex, hybrid detector for ground-based gamma-ray astronomy for energies from a few TeV to several PeV as well as for cosmic ray studies from 100 TeV to several EeV. The array will consist of a wide angle Cherenkov array – TAIGA-HiSCORE with 5km2 area, a net of 16 IACT telescopes (with FOV of about 9.72°×9.72°) as well as muon and other detectors. We present the current status of the array construction.

Published
2017

16. The prototyping/early construction phase of the BAIKAL-GVD project

Author

K.V. Golubkov, V. M. Aynutdinov, Sergey Yakovlev, I. A. Belolaptikov, Konstantin Kebkal, A. I. Panfilov, A.V. Korobchenko, E.N. Pliskovsky, V.F. Rubtsov, Z. Honz, M.B. Milenin, O.G. Kebkal, Aleksandr Gafarov, A. V. Skurikhin, M.I. Rozanov, Olga Suvorova, A. V. Zagorodnikov, L. V. Pankov, T. I. Gress, R. Bannasch, V.A. Poleshuk, I. A. Danilchenko, A.P. Koshechkin, S.V. Fialkovsky, K. V. Konishchev, V. A. Zhukov, N. M. Budnev, D.Yu. Bogorodsky, O. N. Gaponenko, V. A. Kozhin, Evgenii V Rjabov, A.D. Avrorin, R. R. Mirgazov, B. A. Tarashchansky, Valery Zurbanov, G.V. Domogatsky, A. A. Perevalov, E. N. Konstantinov, B.A. Shaybonov, V.I. Ljashuk, A. N. Dyachok, D.A. Kuleshov, V.F. Kulepov, V.B. Brudanin, F.K. Koshel, A.A. Sheifler, A.V. Avrorin, A.A. Smagina, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, E. A. Osipova, and A. I. Lolenko

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Nuclear and High Energy Physics, Engineering drawing, String (computer science), Detector, Phase (waves), FOS: Physical sciences, Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation
Abstract

The Prototyping phase of the BAIKAL-GVD project has been started in April 2011 with the deployment of a three string engineering array which comprises all basic elements and systems of the Gigaton Volume Detector (GVD) in Lake Baikal. In April 2012 the version of engineering array which comprises the first full-scale string of the GVD demonstration cluster has been deployed and operated during 2012. The first stage of the GVD demonstration cluster which consists of three strings is deployed in April 2013. We review the Prototyping phase of the BAIKAL-GVD project and describe the configuration and design of the 2013 engineering array., Proceedings of the RICAP 2013 Conference, Rome, Italy, May 22-24, 2013, 7 pages, 12 figures

Published
2014

17. Tunka-Rex: Status and results of the first measurements

Author

N. M. Budnev, A. Haungs, Alexander A. Konstantinov, Grigory Rubtsov, Dmitriy Kostunin, O. A. Gress, R. R. Mirgazov, L. V. Pankov, E. Svetnitsky, O. Krömer, L. A. Kuzmichev, R. Hiller, Yulia Kazarina, E. N. Konstantinov, V. V. Prosin, M. Kleifges, F.G. Schröder, R. Wischnewski, C. Rühle, E. E. Korosteleva, A. V. Zagorodnikov, and T. Huege

Subjects
Physics, Nuclear and High Energy Physics, Photomultiplier, Optics, business.industry, Detector, ddc:530, Astrophysics, Current (fluid), business, Instrumentation, Radio detection
Abstract

Tunka-Rex is the new radio extension of Tunka-133 located in Siberia close to Lake Baikal. The latter is a photomultiplier array registering air-Cherenkov light from air showers induced by cosmic-ray particles with initial energies of approximately 1016– 10 18 eV . Tunka-Rex extends this detector with 25 antennas spread over an area of 1 km2. It is triggered externally by Tunka-133, and detects the radio emission of the same air showers. The combination of an air-Cherenkov and a radio detector provides a facility for hybrid measurements and cross-calibration between the two techniques. The main goal of Tunka-Rex is to determine the precision of the reconstruction of air-shower parameters using the radio detection technique. It started operation in autumn 2012. We present the overall concept of Tunka-Rex, the current status of the array and first analysis results.

Published
2014

18. Current status of the BAIKAL-GVD project

Author

A. V. Zagorodnikov, T. I. Gress, A. A. Sheifler, A.P. Koshechkin, D.A. Kuleshov, F.K. Koshel, A. V. Shirokov, V.A. Poleshuk, I. A. Belolaptikov, A. A. Perevalov, Konstantin Kebkal, V.B. Brudanin, V.F. Kulepov, Valery Zurbanov, E.N. Pliskovsky, A. V. Skurikhin, A. I. Panfilov, A. M. Klabukov, M.B. Milenin, O.G. Kebkal, S.V. Fialkovsky, O. N. Gaponenko, M.I. Rozanov, O. G. Grishin, V. A. Zhukov, Evgenii V Rjabov, K.V. Golubkov, G.V. Domogatsky, R. R. Mirgazov, I. A. Danilchenko, B. A. Tarashchansky, K. V. Konishchev, N. M. Budnev, V.I. Ljashuk, A.V. Korobchenko, D. A. Petukhov, O. A. Gress, V. A. Kozhin, V.F. Rubtsov, A. S. Yagunov, E.G. Popova, L. A. Kuzmichev, E. A. Osipova, A. Pan'kov, V. M. Aynutdinov, B.A. Shaybonov, A. N. Dyachok, D.Yu. Bogorodsky, Olga Suvorova, L. V. Pankov, A. Pakhorukov, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, and A.V. Avrorin

Subjects
Physics, Current (stream), Nuclear and High Energy Physics, Neutrino detector, Neutrino telescope, Systems engineering, Milestone (project management), Astronomy, Instrumentation, Technical design
Abstract

We present a status of the Baikal-GVD Project. The objective of this project is a construction of a km3-scale neutrino telescope in the Lake Baikal. As an important milestone, the first GVD engineering array has been deployed and ran in April, 2011. Application of a completely new technology gave us an opportunity to study all the basic elements of the future full detector and to finalize the GVD technical design. We discuss the configuration and the design of the engineering array as well as data performance with the preliminary results.

Published
2013

19. A comparison of the cosmic-ray energy scales of Tunka-133 and KASCADE-Grande via their radio extensions Tunka-Rex and LOPES

Author

R. D. Monkhoev, Harald Schieler, Hermann-Josef Mathes, J.C. Arteaga-Velázquez, Kai Daumiller, V. V. Prosin, Alexandra Saftoiu, C. Grupen, A. Chiavassa, N. B. Lubsandorzhiev, I.M. Brancus, J. Zabierowski, G. Toma, P. Łuczak, N. Palmieri, M. E. Bertaina, R. Wischnewski, Jan Kuijpers, E. E. Korosteleva, J. Blümer, Andreas Weindl, J. Wochele, Dmitriy Kostunin, O. A. Gress, G.C. Trinchero, Octavian Sima, Julian Rautenberg, M. Kleifges, F. Di Pierro, W. D. Apel, Katrin Link, Tanguy Pierog, C. Rühle, Grigory Rubtsov, J. A. Zensus, H. Bozdog, E. A. Osipova, O. Krömer, M. Melissas, A. Schmidt, Yulia Kazarina, Pavel Bezyazeekov, A. L. Pakhorukov, R. Hiller, Markus Roth, Ralph Engel, Tim Huege, Jörg R. Hörandel, J. Oehlschläger, C. Morello, Andreas Haungs, H. Rebel, Peter L. Biermann, Paula Gina Isar, D. Huber, P. Doll, B. Fuchs, A. Horneffer, L. V. Pankov, L. Bähren, D. Kang, R. R. Mirgazov, M. Ludwig, Oleg Fedorov, S. Schoo, Karl-Heinz Kampert, Dieter Heck, V. de Souza, Heino Falcke, E. Cantoni, A. V. Zagorodnikov, F. G. Schröder, L. A. Kuzmichev, K. Bekk, H. Gemmeke, and N. M. Budnev

Subjects
Nuclear and High Energy Physics, Cosmic rays, KASCADE-Grande, LOPES, Radio detection, Tunka-133, Tunka-Rex, Physics::Instrumentation and Detectors, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics, 01 natural sciences, Air showers, 0103 physical sciences, ddc:530, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Digital radio, ASTROFÍSICA, lcsh:QC1-999, Computational physics, Air shower, Amplitude, KASCADE, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, lcsh:Physics, Radio wave
Abstract

Physics letters / B 763, 179 - 185(2016). doi:10.1016/j.physletb.2016.10.031, The radio technique is a promising method for detection of cosmic-ray air showers of energies around View the MathML source100PeV and higher with an array of radio antennas. Since the amplitude of the radio signal can be measured absolutely and increases with the shower energy, radio measurements can be used to determine the air-shower energy on an absolute scale. We show that calibrated measurements of radio detectors operated in coincidence with host experiments measuring air showers based on other techniques can be used for comparing the energy scales of these host experiments. Using two approaches, first via direct amplitude measurements, and second via comparison of measurements with air shower simulations, we compare the energy scales of the air-shower experiments Tunka-133 and KASCADE-Grande, using their radio extensions, Tunka-Rex and LOPES, respectively. Due to the consistent amplitude calibration for Tunka-Rex and LOPES achieved by using the same reference source, this comparison reaches an accuracy of approximately 10%10% – limited by some shortcomings of LOPES, which was a prototype experiment for the digital radio technique for air showers. In particular we show that the energy scales of cosmic-ray measurements by the independently calibrated experiments KASCADE-Grande and Tunka-133 are consistent with each other on this level., Published by North-Holland Publ., Amsterdam

Published
2016

20. The Tunka radio extension (Tunka-Rex): Radio measurements of cosmic rays in Siberia

Author

Pavel Bezyazeekov, A. Haungs, N. B. Lubsandorzhiev, R. Hiller, Dmitriy Kostunin, O. A. Gress, E. E. Korosteleva, Y. Kazarina, V. V. Prosin, M. Kleifges, F.G. Schröder, R. Wischnewski, Grigory Rubtsov, L. A. Kuzmichev, N. M. Budnev, R. D. Monkhoev, R. R. Mirgazov, A. L. Pakhorukov, E. N. Konstantinov, A. V. Zagorodnikov, T. Huege, L. V. Pankov, and O. Krömer

Subjects
Nuclear and High Energy Physics, Photomultiplier, air, Cosmic ray, primary [cosmic radiation], Baikal, Scintillator, 01 natural sciences, Extension (metaphysics), Observatory, 0103 physical sciences, site, ddc:530, Cherenkov, 010303 astronomy & astrophysics, Instrumentation, Cherenkov radiation, scintillation counter, Physics, radio wave, photomultiplier, 010308 nuclear & particles physics, Detector, Astronomy, showers, observatory, statistics, Radio detection
Abstract

The Tunka observatory is located close to Lake Baikal in Siberia, Russia. Its main detector, Tunka-133, is an array of photomultipliers measuring Cherenkov light of air showers initiated by cosmic rays in the energy range of approximately 10 16 − 10 18 eV . In the last years, several extensions have been built at the Tunka site, e.g., a scintillator array named Tunka-Grande, a sophisticated air-Cherenkov-detector prototype named HiSCORE, and the radio extension Tunka-Rex. Tunka-Rex started operation in October 2012 and currently features 44 antennas distributed over an area of about 3 km 2 , which measure the radio emission of the same air showers detected by Tunka-133 and Tunka-Grande. Tunka-Rex is a technological demonstrator that the radio technique can provide an economic extension of existing air-shower arrays. The main scientific goal is the cross-calibration with the air-Cherenkov measurements. By this cross-calibration, the precision for the reconstruction of the energy and mass of the primary cosmic-ray particles can be determined. Finally, Tunka-Rex can be used for cosmic-ray physics at energies close to 1 EeV, where the standard Tunka-133 analysis is limited by statistics. In contrast to the air-Cherenkov measurements, radio measurements are not limited to dark, clear nights and can provide an order of magnitude larger exposure.

Published
2016

21. Asp-15—A stationary device for the measurement of the optical water properties at the NT200 neutrino telescope site

Author

V. Rubtzov, V. A. Poleschuk, K.V. Golubkov, O. G. Grishin, E. A. Osipova, R. R. Mirgazov, B.A. Tarashansky, I. A. Belolaptikov, V. I. Lyashuk, L. A. Kuzmichev, A. A. Perevalov, M.B. Milenin, T. I. Gress, A. A. Sheifler, A. Rastegin, D. Bogorodsky, A.D. Avrorin, V.F. Kulepov, E. V. Ryabov, I. A. Danilchenko, O. A. Gress, G.V. Domogatsky, S.V. Fialkovsky, A. Pan'kov, V. A. Zhukov, A.V. Korobchenko, V. M. Aynutdinov, E.N. Pliskovsky, B. Shoibonov, A. M. Klabukov, R. Wischnewski, A. I. Panfilov, M.I. Rozanov, A. V. Zagorodnikov, N. M. Budnev, D. P. Petukhov, O. N. Gaponenko, D.A. Kuleshov, F.K. Koshel, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, A.P. Koshechkin, V. Karnaukhov, K.V. Konischev, A. N. Dyachok, Ch. Spiering, Olga Suvorova, L. V. Pankov, and A. S. Yagunov

Subjects
Physics, Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, Astrophysics::Instrumentation and Methods for Astrophysics, Astrophysics, Solar neutrino problem, Computational physics, law.invention, Telescope, Neutrino detector, law, Measurements of neutrino speed, ddc:530, Neutrino astronomy, Neutrino, Neutrino oscillation, Instrumentation
Abstract

The operation of large underwater neutrino telescopes requires the precise knowledge of the water parameters governing light absorption and scattering, as well as a continuous monitoring of these parameters. For this purpose, a stationary underwater device, ASP-15, has been developed by the Baikal collaboration. We describe the basic assumptions and formulae behind ASP-15, the methods how absorption length, scattering length and phase functions are determined, the design of the device, and give some results obtained over many years of operation in conjuction with the Baikal telescope NT200.

Published
2012

22. Search for astrophysical neutrinos in the Baikal neutrino project

Author

M.B. Milenin, S. P. Mikheev, A.V. Avrorin, E. A. Osipova, O. A. Gress, A. Pan'kov, A. I. Panfilov, K.V. Golubkov, A.P. Koshechkin, M.I. Rozanov, V. I. Lyashuk, O. N. Gaponenko, Olga Suvorova, V. A. Zhukov, A. I. Klimov, N. M. Budnev, L. V. Pankov, R. Wisznewski, I. A. Belolaptikov, B. A. Shaibonov, R. R. Mirgazov, D. A. Petukhov, V. Yu. Rubtsov, A.V. Korobchenko, A. N. Shirokov, A. S. Yagunov, A. N. Dyachok, B. A. Tarashchanskii, D.A. Kuleshov, E.G. Popova, E. N. Pliskovskii, D. Yu. Bogorodskii, G. V. Domogatskii, S. I. Sinegovskii, S. V. Fialkovskii, A. M. Klabukov, A. A. Perevalov, L. A. Kuzmichev, O. G. Grishin, T. I. Gress, A. A. Sheifler, V. M. Ainutdinov, E. V. Ryabov, V. Poleshchuk, E. Middell, K. V. Konishchev, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, V. V. Prosin, Ch. Spiering, V.F. Kulepov, I. A. Danilchenko, and A. V. Zagorodnikov

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Radiation, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, High Energy Physics::Phenomenology, Astrophysics::Instrumentation and Methods for Astrophysics, Solar neutrino problem, Atomic and Molecular Physics, and Optics, Cosmic neutrino background, Neutrino detector, Measurements of neutrino speed, High Energy Physics::Experiment, Radiology, Nuclear Medicine and imaging, Neutrino astronomy, Neutrino, Neutrino oscillation
Abstract

The currently running NT200 and NT200+ Baikal neutrino telescopes and the prospects for development of the Baikal Neutrino Project are briefly descr⇊ed. Preliminary results of the search for neutrino events correlated with cosmological gamma-ray bursts at the NT200 are presented. The feasibility of developing a method for acoustic detection of ultrahigh-energy neutrinos in the Baikal Neutrino Project is discussed. The calculation results for the energy spectrum and zenith-angle distributions of atmospheric neutrinos in the energy range from 10 to 107 GeV obtained within various high-energy hadron-nucleus interaction models are presented.

Published
2011

23. The Baikal Neutrino Project: Present and perspective

Author

A. Pan'kov, A.A. Sheifler, V. M. Aynutdinov, A.V. Korobchenko, I. V. Yashin, B. Shoibonov, K.V. Konischev, S.V. Fialkovsky, A. I. Klimov, V. I. Lyashuk, V. A. Zhukov, V.A. Balkanov, M.B. Milenin, B.A. Tarashansky, A. N. Dyachok, A.P. Koshechkin, N. M. Budnev, E. Middell, Ch. Spiering, E.N. Pliskovsky, A. M. Klabukov, D. P. Petukhov, Olga Suvorova, L. V. Pankov, A.D. Avrorin, A. Kochanov, R. R. Mirgazov, G.V. Domogatsky, A. I. Panfilov, A. S. Yagunov, A. V. Zagorodnikov, M.I. Rozanov, D.A. Kuleshov, V. A. Poleschuk, R. Wischnewski, K.V. Golubkov, T. I. Gress, A. V. Shirokov, V.F. Kulepov, O. N. Gaponenko, O. A. Gress, P. G. Pokhil, O. G. Grishin, I. A. Danilchenko, L. A. Kuzmichev, S. Mikheyev, I. A. Portyanskaya, I. A. Belolaptikov, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, E.G. Popova, V. V. Prosin, D. Bogorodsky, V. Rubtzov, and E. A. Osipova

Subjects
Physics, Nuclear and High Energy Physics, Neutrino detector, Neutrino telescope, Detector, Astronomy, ddc:530, Neutrino, Neutrino astronomy, Instrumentation, Cherenkov radiation
Abstract

The first stage Baikal Neutrino Telescope NT200 has been operating since 1998 and was upgraded to the 10 Mton detector NT200+ in 2005. The preparation towards a development of a km 3 -scale detector in Lake Baikal is currently a central activity point. As an important milestone a km 3 -prototype Cherenkov string, based on completely new technology, was installed in 2008 and has been successfully operating together with NT200+. It was upgraded in April 2009. Also, we review the status of high-energy acoustic neutrino detection activities in Lake Baikal.

Published
2011

24. High energy neutrino acoustic detection activities in Lake Baikal: Status and results

Author

A. I. Panfilov, M.I. Rozanov, I. A. Belolaptikov, T. I. Gress, S.V. Fialkovsky, V. A. Zhukov, N. M. Budnev, D. Bogorodsky, A. Kochanov, R. R. Mirgazov, A. A. Doroshenko, A. V. Shirokov, I. A. Danilchenko, D. P. Petukhov, A. I. Klimov, Zh.-A.M. Dzhilkibaev, V. V. Prosin, O. N. Gaponenko, A.D. Avrorin, E.G. Popova, B.A. Tarashansky, V. A. Poleschuk, P. G. Pokhil, E.N. Pliskovsky, E. A. Osipova, A. M. Klabukov, G.V. Domogatsky, K.V. Golubkov, O. G. Grishin, B. Shoibonov, V.F. Kulepov, V. Rubtzov, O. A. Gress, G. Pan'kov, E. Middell, V. M. Aynutdinov, M.B. Milenin, I. V. Yashin, A. N. Dyachok, Ralf Wischnewski, L. A. Kuzmichev, S. Mikheyev, Ch. Spiering, L. V. Pankov, A.P. Koshechkin, A.A. Sheifler, K.V. Konischev, and V.A. Balkanov

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, Astrophysics::Instrumentation and Methods for Astrophysics, Geophysics, Astrophysics, Solar neutrino problem, Noise, Neutrino detector, Computer Science::Sound, Measurements of neutrino speed, Neutrino, Underwater, Neutrino astronomy, Instrumentation
Abstract

We review the status of high-energy acoustic neutrino detection activities in Lake Baikal. The Baikal collaboration constructed a hydro-acoustic device which may be regarded as a prototype subunit for a future underwater acoustic neutrino telescope. The device is capable of common operation with the Baikal neutrino telescope NT200+, and is operating at a depth of about 150 m on the “NT200+ instrumentation string”. Our measurements show that the integral noise power in the frequency band 20–40 kHz can reach levels as low as about 1 mPa, i.e. one of the lowest noise levels measured at the currently considered acoustic neutrino sites. At the same time, short acoustic pulses with different amplitudes and shapes have been observed. Low sound absorption in Baikal freshwater and absence of strong acoustic noise sources do motivate further activities towards a large-scale acoustic neutrino detector in Lake Baikal.

Published
2009

25. The BAIKAL neutrino experiment—Physics results and perspectives

Author

D. Bogorodsky, I. V. Yashin, E.N. Pliskovsky, A. M. Klabukov, E. A. Osipova, P. G. Pokhil, A.A. Sheifler, A. Rastegin, A.P. Koshechkin, G. Pan'kov, V. A. Poleschuk, V. M. Aynutdinov, S.V. Fialkovsky, B.A. Tarashansky, A. N. Dyachok, B. Shoibonov, V. A. Zhukov, A. I. Klimov, T. I. Gress, K.V. Konischev, Ch. Spiering, V.F. Kulepov, M.B. Milenin, V. Rubtzov, Ralf Wischnewski, A. Kochanov, R. R. Mirgazov, A. V. Shirokov, L. A. Kuzmichev, S. Mikheyev, V.A. Balkanov, Olga Suvorova, E. Middell, E.G. Popova, L. V. Pankov, I. A. Danilchenko, N. M. Budnev, O. A. Gress, D.A. Kuleshov, D. P. Petukhov, A. A. Doroshenko, K.V. Golubkov, Zh.-A.M. Dzhilkibaev, O. G. Grishin, A.D. Avrorin, V. V. Prosin, S. V. Lovtsov, A. I. Panfilov, G.V. Domogatsky, M.I. Rozanov, O. N. Gaponenko, and I. A. Belolaptikov

Subjects
Astroparticle physics, Physics, Nuclear and High Energy Physics, Solar neutrino, Astrophysics (astro-ph), Detector, Neutrino telescope, FOS: Physical sciences, Astronomy, Solar neutrino problem, Astrophysics, Neutrino detector, ddc:530, Neutrino, Neutrino astronomy, Instrumentation
Abstract

We review the status of the Lake Baikal Neutrino Experiment. The Neutrino Telescope NT200 has been operating since 1998 and has been upgraded to the 10 Mton detector NT200+ in 2005. We present selected astroparticle physics results from long-term operation of NT200. Also discussed are activities towards acoustic detection of UHE-energy neutrinos, and results of associated science activities. Preparation towards a km3-scale (Gigaton volume) detector in Lake Baikal is currently a central activity. As an important milestone, a km3-prototype string, based on completely new technology, has been installed and is operating together with NT200+ since April, 2008., Comment: 8 pages, 12 figures; presented at VLVNT08 (Very Large Volume Neutrino Telescope) Workshop, Toulon, France, April, 2008; to appear in NIM-A

Published
2009

26. Baikal neutrino telescope—An underwater laboratory for astroparticle physics and environmental studies

Author

T. I. Gress, O. N. Gaponenko, A. V. Shirokov, A. Rastegin, R. Wischnewski, E. A. Osipova, A. Kochanov, R. R. Mirgazov, G. Pan'kov, B.A. Tarashansky, V. A. Poleschuk, K.V. Golubkov, E.N. Pliskovsky, A. M. Klabukov, S.V. Fialkovsky, A.D. Avrorin, A. N. Dyachok, A. A. Doroshenko, I. A. Belolaptikov, S. V. Lovtsov, Zh.-A.M. Dzhilkibaev, V. V. Prosin, I. A. Danilchenko, G.V. Domogatsky, V. A. Zhukov, V. M. Aynutdinov, Ch. Spiering, V. Rubtzov, D. Bogorodsky, E.G. Popova, O. G. Grishin, A. I. Klimov, P. G. Pokhil, A.A. Sheifler, L. V. Pankov, A.P. Koshechkin, V.F. Kulepov, K.V. Konischev, V.A. Balkanov, L. A. Kuzmichev, S. Mikheyev, O. A. Gress, I. V. Yashin, M.B. Milenin, A. I. Panfilov, E. Middell, M.I. Rozanov, N. M. Budnev, D. P. Petukhov, and B. Shoibonov

Subjects
Astroparticle physics, Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Solar neutrino problem, Physics::Geophysics, Neutrino detector, Measurements of neutrino speed, High Energy Physics::Experiment, Underwater, Neutrino, Neutrino astronomy, Instrumentation
Abstract

We review the status of the Baikal Neutrino Experiment. The Neutrino Telescope NT200 is operating in Lake Baikal since 1998 and has been upgraded to the 10 Mton detector NT200+ in 2005. We present selected results concerning astroparticle physics as well as results of environmental studies. We describe the strategy of creating a Gigaton (km3) scale neutrino detector at Lake Baikal. First steps of activities towards a km3 Baikal neutrino telescope, including the development of acoustic high energy neutrino detection method are discussed.

Published
2009

27. The Baikal Neutrino experiment: NT200+ and beyond

Author

K.V. Golubkov, A. A. Pavlov, V. A. Poleschuk, T. I. Gress, V. M. Aynutdinov, V.F. Kulepov, R. Vasiliev, O. G. Grishin, A. V. Shirokov, K.V. Konischev, Yu. A. Semeney, B.A. Tarashansky, V. Rubtzov, A. Kochanov, R. R. Mirgazov, V.A. Balkanov, E.G. Popova, A.P. Koshechkin, S.V. Fialkovsky, E.N. Pliskovsky, O. N. Gaponenko, Ya. Davidov, I. A. Belolaptikov, D. Borschov, A. M. Klabukov, G. Pan'kov, V. A. Zhukov, A. I. Panfilov, M.I. Rozanov, E. A. Osipova, A. I. Klimov, L. V. Pankov, L. B. Bezrukov, N. M. Budnev, B. K. Lubsandorzhiev, D. P. Petukhov, A. A. Doroshenko, A. N. Dyachok, Zh.-A.M. Dzhilkibaev, R. Wischnewski, V. V. Prosin, Ch. Spiering, L. A. Kuzmichev, T. Mikolajski, S. Mikheyev, S. I. Klimushin, P. G. Pokhil, I. A. Danilchenko, B. A. M. Shaibonov, G.V. Domogatsky, M.B. Milenin, O. A. Gress, and I. V. Yashin

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astrophysics, Solar neutrino problem, law.invention, Telescope, Neutrino detector, law, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino, Neutrino astronomy, Neutrino oscillation, Instrumentation
Abstract

The 10 Mton scale Neutrino telescope NT 200 + is operating in Lake Baikal since April, 2005. It's main physics goal is the detection of high energy neutrino cascades in the 10 2 – 10 5 TeV energy range. The NT 200 + sensitivity to astrophysical diffuse neutrinos is four times that of it's predecessor NT200 the telescope that has been operating since 1998, yielding a variety of physics results. A km-scale (Gigaton Volume) Neutrino telescope in Lake Baikal is planned, the R&D phase has started in 2006. We give the basic layout of this Baikal km3-detector, which will be made of building blocks similar to NT 200 + .

Published
2007

28. Measurement of cosmic-ray air showers with the Tunka Radio Extension (Tunka-Rex)

Author

L. V. Pankov, Pavel Bezyazeekov, E. E. Korosteleva, R. Hiller, N. M. Budnev, C. Rühle, E. Levinson, O. Krömer, M. Kleifges, V. V. Prosin, Grigory Rubtsov, A. V. Zagorodnikov, L. A. Kuzmichev, Tim Huege, R. R. Mirgazov, Yulia Kazarina, E. N. Konstantinov, F.G. Schröder, R. Wischnewski, R. D. Monkhoev, A. Haungs, N. B. Lubsandorzhiev, A. L. Pakhorukov, Dmitriy Kostunin, and O. A. Gress

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Particle detector, Computational physics, Nuclear physics, Amplitude, Earth's magnetic field, Air shower, Measuring instrument, Calibration, High Energy Physics::Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

Tunka-Rex is a radio detector for cosmic-ray air showers in Siberia, triggered by Tunka-133, a co-located air-Cherenkov detector. The main goal of Tunka-Rex is the cross-calibration of the two detectors by measuring the air-Cherenkov light and the radio signal emitted by the same air showers. This way we can explore the precision of the radio-detection technique, especially for the reconstruction of the primary energy and the depth of the shower maximum. The latter is sensitive to the mass of the primary cosmic-ray particles. In this paper we describe the detector setup and explain how electronics and antennas have been calibrated. The analysis of data of the first season proves the detection of cosmic-ray air showers and therefore, the functionality of the detector. We confirm the expected dependence of the detection threshold on the geomagnetic angle and the correlation between the energy of the primary cosmic-ray particle and the radio amplitude. Furthermore, we compare reconstructed amplitudes of radio pulses with predictions from CoREAS simulations, finding agreement within the uncertainties., Comment: Description and Calibration paper for Tunka-Rex

Published
2015
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29. The BAIKAL neutrino experiment: From NT200 to NT200+

Author

E. A. Osipova, B. K. Lubsandorzhiev, P. G. Pokhil, V.F. Kulepov, B.A. Tarashansky, K.V. Konischev, D. Borschov, Yu. A. Semeney, N. M. Budnev, V. A. Poleschuk, I. I. Yashin, B. A. M. Shaibonov, A. A. Doroshenko, V.A. Balkanov, T. Mikolajski, D. P. Petukhov, I. A. Danilchenko, V. M. Aynutdinov, L. V. Pankov, M.B. Milenin, G.V. Domogatsky, A. A. Pavlov, A. I. Panfilov, A. I. Klimov, Zh.-A.M. Dzhilkibaev, M.I. Rozanov, V. V. Prosin, A. N. Dyachok, O. A. Gress, A.P. Koshechkin, Ch. Spiering, E.G. Popova, S. I. Klimushin, O. N. Gaponenko, V. Rubtzov, Ya. Davidov, R. Vasiliev, S.V. Fialkovsky, V. A. Zhukov, K.V. Golubkov, I. A. Belolaptikov, L. B. Bezrukov, E.N. Pliskovsky, A. M. Klabukov, O. G. Grishin, Ralf Wischnewski, L. A. Kuzmichev, S. Mikheyev, A. Kochanov, R. R. Mirgazov, T. I. Gress, A. V. Shirokov, and G. Pan'kov

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy, Solar neutrino problem, Astrophysics, law.invention, Telescope, Neutrino detector, law, Measurements of neutrino speed, ddc:530, High Energy Physics::Experiment, Neutrino, Neutrino astronomy, Neutrino oscillation, Instrumentation
Abstract

The Baikal neutrino telescope NT200 takes data since 1998. In 2005, the deployment of three additional strings for common operation with NT200 was finished. We describe the physics program and the design of the new telescope named NT200+ and present selected physical results obtained with NT200. First results from NT200+ will be presented at the conference., Comment: 4 pages, 5 figures, Proceedings of 29th International Cosmic Ray Conference (ICRC) 2005, Pune, India

Published
2006

30. BAIKAL experiment: Main results obtained with the neutrino telescope NT200

Author

A.P. Koshechkin, K.V. Konischev, Yu. A. Semeney, V.A. Balkanov, K.V. Golubkov, V.F. Kulepov, A. I. Panfilov, M.B. Milenin, M.I. Rozanov, S. I. Klimushin, V. Rubtzov, B.A. Tarashansky, G. Pan'kov, P. G. Pokhil, Ya. Davidov, V. A. Poleschuk, I. A. Belolaptikov, S.V. Fialkovsky, D. Borschov, A. A. Pavlov, R. Vasiliev, V. A. Zhukov, L. B. Bezrukov, N. M. Budnev, A. Kochanov, R. R. Mirgazov, D. P. Petukhov, O. N. Gaponenko, A. A. Doroshenko, E.G. Popova, O. A. Gress, E. A. Osipova, I. A. Danilchenko, E.N. Pliskovsky, Zh.-A.M. Dzhilkibaev, A. M. Klabukov, V. V. Prosin, L. A. Kuzmichev, S. Mikheyev, B. K. Lubsandorzhiev, I. I. Yashin, R. Wischnewski, V. M. Aynutdinov, A. N. Dyachok, O. G. Grishin, T. I. Gress, A. I. Klimov, Ch. Spiering, A. V. Shirokov, L. V. Pankov, T. Mikolajski, B. A. M. Shaibonov, and G.V. Domogatsky

Subjects
Physics, Nuclear and High Energy Physics, Solar neutrino, Astrophysics (astro-ph), Neutrino telescope, FOS: Physical sciences, Astronomy, Astrophysics, Solar neutrino problem, Particle detector, Neutrino detector, ddc:530, Neutrino astronomy, Neutrino, Instrumentation, Lepton
Abstract

The Baikal Neutrino Telescope NT200 takes data since April 1998. On April 9th, 2005, the 10 Mton scale detector NT200$+$ was put into operation in Lake Baikal. Selected results obtained during 1998-2002 with the neutrino telescope NT200 are presented., 6 pages, 7 figures, presented at 2nd VLVNT Workshop on Very Large Volume Neutrino Telescope (VLVNT2), Catania, Italy, 8-11 Nov. 2005

Published
2006

31. The BAIKAL neutrino project: status, results and perspectives

Author

Zh.-A.M. Dzhilkibaev, V. V. Prosin, A.G. Chensky, E. A. Osipova, Dmitry Chernov, V. M. Aynutdinov, A.P. Koshechkin, B.A. Tarashansky, P. G. Pokhil, R. R. Mirgazov, A. N. Dyachok, K. Kazakov, E. Vyatchin, S.V. Fialkovsky, I. I. Yashin, Ch. Spiering, N. M. Budnev, T. I. Gress, V. A. Zhukov, M.B. Milenin, B. A. M. Shaibonov, I. A. Danilchenko, V. Rubtzov, E.N. Pliskovsky, A. M. Klabukov, A. I. Klimov, BayarJon Paul Lubsandorzhiev, L. V. Pankov, O. A. Gress, G.V. Domogatsky, A. A. Pavlov, A. I. Panfilov, V.F. Kulepov, V. Polecshuk, Ole Streicher, G. Pan'kov, L. A. Kuzmichev, S. Mikheyev, R. Vasiliev, Yu. V. Parfenov, K.V. Konischev, Yu. A. Semeney, L. B. Bezrukov, V.A. Balkanov, S. I. Klimushin, M. I. Rosanov, R. Wischnewski, I. A. Belolaptikov, Vy. Kuznetzov, O. N. Gaponenko, and E.G. Popova

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Upgrade, Scale (ratio), Detector, Neutrino, Atomic and Molecular Physics, and Optics
Abstract

We review the present status of the Baikal Neutrino Project and present selected results obtained from data taken in 1998 - 2000 (780 live days). We describe the moderate upgrade of NT-200 planned for the next years and discuss a possible detector on the Gigaton scale.

Published
2005

32. The Baikal Neutrino Experiment: Status and beyond

Author

A. I. Panfilov, V.F. Kulepov, A. I. Klimov, I. A. Danilchenko, M. I. Rosanov, R. Wischnewski, V. Polecshuk, A.P. Koshechkin, A.G. Chensky, V. M. Aynutdinov, Dmitry Chernov, T. I. Gress, B.A. Tarashansky, V. Yu. Rubtzov, L. V. Pankov, O. N. Gaponenko, M.B. Milenin, E. Vyatchin, R. R. Mirgazov, B. A. M. Shaibonov, A. A. Pavlov, S. I. Klimushin, Bayarto Lubsandorzhiev, E.N. Pliskovsky, G.V. Domogatsky, L. A. Kuzmichev, Zh.-A.M. Dzhilkibaev, G. Pan'kov, A. M. Klabukov, S. Mikheyev, V. V. Prosin, A. N. Dyachok, V. A. Zhukov, E. A. Osipova, K.V. Konischev, Ole Streicher, Ch. Spiering, N. I. Moiseiko, I. V. Yashin, I. A. Belolaptikov, V. A. Balkanov, Yu. A. Semeney, E.G. Popova, P. G. Pokhil, R. Vasiliev, Vy. Kuznetzov, O. A. Gress, L. B. Bezrukov, Yu. V. Parfenov, and N. M. Budnev

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, High Energy Physics::Phenomenology, Solar neutrino problem, Atomic and Molecular Physics, and Optics, Massless particle, Nuclear physics, Neutrino detector, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino, Neutrino oscillation, Lepton
Abstract

The present status of the Baikal Neutrino Experiment and the present results of a search for upward going atmospheric neutrinos, WIMPs, and magnetic monopoles obtained with the NT-200 detector are reviewed. The results of a search for very high-energy neutrinos are presented as well. An upper limit on the νe+νe+ντ neutrino diffuse flux of E2Φ(E)

Published
2004

33. Physics Results from the Baikal Neutrino Telescope

Author

A. N. Dyachok, M. I. Rosanov, R. Wischnewski, Ch. Spiering, O. A. Gress, G.V. Domogatsky, I. A. Danilchenko, M.B. Milenin, E.N. Pliskovsky, I. V. Yashin, A. M. Klabukov, V. Rubtzov, O. G. Grishin, V. M. Aynutdinov, B.A. Tarashansky, V.F. Kulepov, N. M. Budnev, L. V. Pankov, D. P. Petukhov, T. Mikolajski, P. G. Pokhil, A. Kochanov, R. R. Mirgazov, E. A. Osipova, A.A. Sheifler, E.G. Popova, O. N. Gaponenko, A. A. Doroshenko, V. Polecshuk, Zh.-A.M. Dzhilkibaev, L. A. Kuzmichev, V. V. Prosin, I. A. Belolaptikov, S. Mikheyev, K.V. Konischev, A. I. Klimov, G. Pan'kov, E. Middell, T. I. Gress, K. Antipin, A. I. Panfilov, A. V. Shirokov, S.V. Fialkovsky, V. A. Zhukov, B. Shaibonov, V.A. Balkanov, A.P. Koshechkin, and K.V. Golubkov

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Neutrino telescope, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astrophysics, Atomic and Molecular Physics, and Optics, Physics::Geophysics, law.invention, Telescope, law, ddc:530, High Energy Physics::Experiment
Abstract

The Baikal neutrino telescope NT200 is in operation since April, 1998. We present physics results obtained with this detector during 1998–2002. Since April 2005, the upgraded 10-Mton scale telescope NT200+ is operating. For a km3-scale neutrino telescope in Lake Baikal, the R&D phase has started in 2006.

Published
2007

34. The optical module of Baikal-GVD

Author

K.V. Golubkov, A.A. Smagina, E. A. Osipova, A.V. Avrorin, A.V. Korobchenko, V.F. Kulepov, A.D. Avrorin, T. I. Gress, G.V. Domogatsky, A.V. Skurihin, I. A. Danilchenko, I. A. Belolaptikov, Konstantin Kebkal, B.A. Tarashansky, V.B. Brudanin, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, M.B. Milenin, Aleksandr Gafarov, R. R. Mirgazov, V. M. Aynutdinov, A. V. Zagorodnikov, O. N. Gaponenko, Valery Zurbanov, N. M. Budnev, Evgenii V Rjabov, Sergey Yakovlev, Z. Honz, D.Yu. Bogorodsky, R. Bannash, D.A. Kuleshov, F.K. Koshel, V.A. Tabolenko, A.A. Sheifler, K.V. Konischev, A.P. Koshechkin, V.I. Ljashuk, S.V. Fialkovsky, V. A. Zhukov, B.A. Shaybonov, A. N. Dyachok, E.N. Pliskovsky, A.V. Kozhin, Olga Suvorova, L. V. Pankov, A. I. Panfilov, O.G. Kebkal, M.I. Rozanov, and Mark Shelepov

Subjects
Nuclear and High Energy Physics, Photomultiplier, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, QC1-999, Astrophysics, 01 natural sciences, String (physics), Particle detector, Optical Module, Data acquisition, Optics, 0103 physical sciences, Calibration, Radiology, Nuclear Medicine and imaging, Electronics, 010306 general physics, Nonlinear Sciences::Pattern Formation and Solitons, 010302 applied physics, Physics, Radiation, 010308 nuclear & particles physics, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Modular design, Atomic and Molecular Physics, and Optics, Neutrino detector, Measuring instrument, High Energy Physics::Experiment, business, Sensitivity (electronics)
Abstract

In April 2015, the first cluster of Baikal-GVD was deployed in Lake Baikal and put into operation. It comprises eight strings. Each string consists of 24 optical modules. An optical module is a detection element of Baikal-GVD; it includes a Hamamatsu R7081-100 photomultiplier tube with a high quantum sensitivity. We describe the design of the optical module, the front-end electronics, and the laboratory characterization and calibration.

Published
2016

35. Status of the Baikal-GVD project

Author

O. N. Gaponenko, Evgenii V Rjabov, A. V. Zagorodnikov, V.I. Ljashuk, B. A. Tarashchansky, A.V. Avrorin, R. R. Mirgazov, A. I. Panfilov, A. A. Doroshenko, I. A. Belolaptikov, Konstantin Kebkal, A. G. Kebkal, V.A. Poleshuk, Zh.-A.M. Dzhilkibaev, M.I. Rozanov, R. Bannasch, D.A. Kuleshov, F.K. Koshel, V.B. Brudanin, O. G. Grishin, S.V. Fialkovsky, K.V. Golubkov, O. A. Gress, V. A. Zhukov, A. S. Yagunov, V. A. Kozhin, N. M. Budnev, S. P. Mikheev, E.N. Pliskovsky, G.V. Domogatsky, V.F. Kulepov, A. M. Klabukov, I. A. Danilchenko, K. V. Konishchev, M.B. Milenin, T. I. Gress, A. A. Sheifler, D. A. Petukhov, A.V. Korobchenko, A. A. Perevalov, A. V. Shirokov, V.F. Rubtsov, A.P. Koshechkin, E.G. Popova, Valery Zurbanov, L. A. Kuzmichev, A. V. Skurikhin, B.A. Shaybonov, A. N. Dyachok, Ch. Spiering, A. Pakhorukov, Olga Suvorova, E. A. Osipova, A. I. Klimov, L. V. Pankov, A. Pan'kov, V. M. Aynutdinov, and D.Yu. Bogorodsky

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Neutrino detector, Pulse circuits, Detector, Neutrino telescope, ddc:530, Underwater, Instrumentation, Technical design, Underwater acoustic communication, Remote sensing
Abstract

The construction of a km 3 -scale neutrino telescope – the Gigaton Volume Detector (GVD) in Lake Baikal – is the central goal of the Baikal collaboration. During the R&D phase of the GVD project in 2008–2010 years the basic elements of GVD – new optical modules, FADC readout units, underwater communications and trigger systems – have been developed, produced and tested in situ by long-term operating prototype strings in Lake Baikal. The prototyping phase of the GVD project has been started in April 2011 with the installation of a three string array (prototype cluster) which comprises all basic elements and systems of the GVD-telescope in Lake Baikal. We describe configuration and technical design of the GVD, present selected results obtained during 2008–2010 with prototype strings, and describe configuration and design of the 2011 prototype cluster.

Published
2012

36. Acoustic search for high-energy neutrinos in the Lake Baikal:Results and plans

Author

A. I. Panfilov, K.V. Konischev, A. A. Doroshenko, E. A. Osipova, Zh.-A.M. Dzhilkibaev, V. V. Prosin, M.I. Rozanov, V. Karnaukhov, A.D. Avrorin, E.G. Popova, G.V. Domogatsky, I. A. Portyanskaya, L. A. Kuzmichev, S. Mikheyev, A. I. Klimov, N. M. Budnev, D. P. Petukhov, A.P. Koshechkin, V. A. Poleschuk, Dmitriy Kostunin, O. A. Gress, I. V. Yashin, A. N. Dyachok, A. Pan'kov, B. Shoibonov, V. I. Lyashuk, D. Bogorodsky, K.V. Golubkov, B.A. Tarashansky, V. M. Aynutdinov, Ch. Spiering, A. S. Yagunov, R. Wischnewski, E. Middell, E.N. Pliskovsky, A. M. Klabukov, I. A. Belolaptikov, O. N. Gaponenko, V.F. Kulepov, A. A. Perevalov, A.V. Korobchenko, Olga Suvorova, L. V. Pankov, I. A. Danilchenko, D.A. Kuleshov, A. V. Zagorodnikov, M.B. Milenin, V. Rubtzov, S.V. Fialkovsky, V. A. Zhukov, A. Kochanov, R. R. Mirgazov, O. G. Grishin, T. I. Gress, A. A. Sheifler, E. V. Ryabov, and A. V. Shirokov

Subjects
Physics, Nuclear and High Energy Physics, High energy, COSMIC cancer database, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Neutrino telescope, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Acoustic sensor, Astronomy, Astrophysics, Computer Science::Sound, High Energy Physics::Experiment, ddc:530, Neutrino, Instrumentation
Abstract

We report the present status and perspectives of the feasibility study to detect cosmic neutrinos acoustically in the Lake Baikal. The results of background studies are presented. It was shown that most of the detected neutrino-like pulses come from the lake surface. This fact has been used in the project of an acoustic prototype detector that consists of compact Acoustic Sensor Modules with 4-channel antennas each, arranged above the Baikal Neutrino Telescope at shallow depths and “listening” the deep-water layers of the lake.

Published
2012

37. The Gigaton Volume Detector in Lake Baikal

Author

I. A. Belolaptikov, M.B. Milenin, B. Shoibonov, I. A. Danilchenko, K.V. Golubkov, V. A. Poleschuk, A. I. Panfilov, A. Pan'kov, A. A. Perevalov, M.I. Rozanov, A. N. Dyachok, V. I. Lyashuk, E. A. Osipova, Ch. Spiering, N. M. Budnev, T.I. Gres, D. P. Petukhov, V. M. Aynutdinov, O. G. Grishin, S.V. Fialkovsky, O. N. Gaponenko, V. A. Zhukov, V.F. Kulepov, A.D. Avrorin, E.G. Popova, Olga Suvorova, A. A. Sheifler, A. I. Klimov, G.V. Domogatsky, E.N. Pliskovsky, L. V. Pankov, O. Gres, A. M. Klabukov, A. Kochanov, R. R. Mirgazov, E. Middell, E. V. Ryabov, A. V. Shirokov, B.A. Tarashansky, S. F. Berezhnev, R. Wischnewski, A.P. Koshechkin, Aleksey Zagorodnikov, D. Bogorodsky, K.V. Konischev, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, V. V. Prosin, N. Grishin, G. Ermakov, A.V. Korobchenko, V. Rubtzov, D.A. Kuleshov, A. S. Yagunov, L. A. Kuzmichev, and S. Mikheyev

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Volume (computing), Astronomy, law.invention, Telescope, Observatory, law, ddc:530, Sensitivity (control systems), Neutrino, Nonlinear Sciences::Pattern Formation and Solitons, Instrumentation, Underwater acoustic communication
Abstract

The objective of the Baikal Project is the creation of a kilometer-scale high-energy neutrino observatory: the Gigaton Volume Detector (GVD) in Lake Baikal. Basic elements of the GVD – new optical modules, FADC readout units, and underwater communication systems – were investigated and tested in Lake Baikal with prototype strings in 2008–2010. We describe the results of prototype strings operation and review the preliminary design and expected sensitivity of the GVD telescope.

Published
2011

38. The Baikal neutrino experiment

Author

A. Pan'kov, Olga Suvorova, A. I. Panfilov, L. V. Pankov, M.I. Rozanov, V. M. Aynutdinov, O. N. Gaponenko, A.D. Avrorin, G.V. Domogatsky, S. F. Berezhnev, E.N. Pliskovsky, A. M. Klabukov, S.V. Fialkovsky, K.V. Konischev, N. M. Budnev, A. I. Klimov, A. V. Zagorodnikov, V. A. Zhukov, O. G. Grishin, D. P. Petukhov, V. A. Poleschuk, Ralf Wischnewski, L. A. Kuzmichev, I. A. Danilchenko, O. Gres, A. N. Dyachok, S. Mikheyev, N. Grishin, T.I. Gres, V.A. Balkanov, B. Shoibonov, G. Ermakov, B.A. Tarashansky, E. Middell, Ch. Spiering, A.P. Koshechkin, A. Kochanov, R. R. Mirgazov, A. V. Shirokov, E. A. Osipova, D.A. Kuleshov, E.G. Popova, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, V.F. Kulepov, V. V. Prosin, A.V. Korobchenko, P. G. Pokhil, V. Rubtzov, A.A. Sheifler, M.B. Milenin, D. Bogorodsky, I. A. Belolaptikov, K.V. Golubkov, and A. S. Yagunov

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Astronomy, Flux, ddc:530, Neutrino astronomy, Neutrino, Instrumentation
Abstract

We review the status of the Lake Baikal Neutrino Experiment. Preparation towards a km3-scale Gigaton Volume Detector (GVD) in Lake Baikal is currently a central activity. As an important milestone, a km3-prototype string comprising of 12 optical modules and based on a completely new technology, has been installed and was put in operation together with NT200+ in April, 2009. We also present recent results from the long-term operation of NT200, including an improved limit on the diffuse astrophysical neutrino flux.

Published
2011

39. A new 1 km2 EAS Cherenkov array in the Tunka Valley

Author

E. E. Koresteleva, N. N. Kalmykov, B. K. Lubsandorzhiev, N. Karpov, I.A. Yashin, Yu. A. Semeney, A. Chiavassa, B. A. M. Shaibonov, D. Besson, P.M. Mirgazov, A. V. Skurikhin, A. V. Zablotsky, L. A. Kuzmichev, Ch. Spiering, V. S. Ptuskin, L. V. Pankov, N. M. Budnev, R. Wischnewski, O. A. Gress, V. A. Kozhin, O. Chvalaev, B.A. Antokhonov, N.B. Lubsandorzhiev, A. A. Silaev, A. V. Zagorodnikov, S.F. Beregnev, V. V. Prosin, and M. I. Panasyuk

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, business.industry, Cherenkov detector, Astrophysics::High Energy Astrophysical Phenomena, Detector, Photodetector, law.invention, Optics, law, Energy spectrum, High Energy Physics::Experiment, ddc:530, business, Instrumentation, Cherenkov radiation
Abstract

A new 1 km2 EAS Cherenkov detector in the Tunka Valley has been put into full operation in the fall of 2009. In this paper we give a short description of the detector and discuss its physics capabilities.

Published
2011

40. The Baikal neutrino experiment: Status, selected physics results, and perspectives

Author

P. G. Pokhil, A. I. Panfilov, G. Pan'kov, A. A. Doroshenko, V. A. Poleschuk, V.M. Aynutdinov, Zh.-A.M. Dzhilkibaev, A.P. Koshechkin, I. V. Yashin, N. M. Budnev, K.V. Konischev, V. Rubtzov, E.N. Pliskovsky, A. M. Klabukov, V. V. Prosin, M.B. Milenin, V.A. Balkanov, Ralf Wischnewski, L. A. Kuzmichev, G.V. Domogatsky, A. Kochanov, R. R. Mirgazov, S. Mikheyev, O. N. Gaponenko, K.V. Golubkov, E. A. Osipova, M.I. Rozanov, A.A. Sheifler, T. I. Gress, A. I. Klimov, I. A. Danilchenko, B.A. Tarashansky, O. A. Gress, V.F. Kulepov, A.D. Avrorin, E. Middell, A. V. Shirokov, O. G. Grishin, B. Shoibonov, S.V. Fialkovsky, V. A. Zhukov, D. P. Petukhov, L. V. Pankov, A. N. Dyachok, Ch. Spiering, I. A. Belolaptikov, and E.G. Popova

Subjects
Physics, Particle physics, Nuclear and High Energy Physics, Scale (ratio), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, Neutrino telescope, Detector, Magnetic monopole, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astrophysics, Solar neutrino problem, Neutrino detector, Measurements of neutrino speed, High Energy Physics::Experiment, ddc:530, Neutrino, Neutrino astronomy, Neutrino oscillation, Instrumentation, Lepton
Abstract

We review the status of the Baikal neutrino telescope, which is operating in Lake Baikal since 1998 and has been upgraded to the 10 Mton detector NT 200 + in 2005. We present selected physics results on searches for upward going neutrinos, relativistic magnetic monopoles and for very high-energy neutrinos. We describe the strategy of creating a detector on the Gigaton ( km 3 ) scale at Lake Baikal. First steps of activities towards a km 3 Baikal neutrino telescope are discussed.

Published
2008

41. The prototype string for the km3-scale Baikal neutrino telescope

Author

A.D. Avrorin, E.G. Popova, M.B. Milenin, G.V. Domogatsky, A. I. Panfilov, G. Pan'kov, V. A. Poleschuk, K.V. Konischev, M.I. Rozanov, E. A. Osipova, O. N. Gaponenko, P. G. Pokhil, V.A. Balkanov, B.A. Tarashansky, I. A. Danilchenko, E. Middell, A. N. Dyachok, V. M. Aynutdinov, E.N. Pliskovsky, K.V. Golubkov, A. M. Klabukov, Ch. Spiering, N. M. Budnev, Olga Suvorova, L. V. Pankov, O. G. Grishin, V. Rubtzov, A. Kochanov, R. R. Mirgazov, T. I. Gress, A.A. Sheifler, A. A. Doroshenko, A. I. Klimov, I. V. Yashin, Zh.-A.M. Dzhilkibaev, A.P. Koshechkin, D. P. Petukhov, V. V. Prosin, D. Bogorodsky, O. A. Gress, I. A. Belolaptikov, A. V. Shirokov, B. Shoibonov, D.A. Kuleshov, Ralf Wischnewski, L. A. Kuzmichev, S. Mikheyev, V.F. Kulepov, S.V. Fialkovsky, and V. A. Zhukov

Subjects
Physics, Nuclear and High Energy Physics, Photomultiplier, Particle physics, Scale (ratio), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Neutrino telescope, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, FOS: Physical sciences, Astrophysics, law.invention, Telescope, law, Calibration, C++ string handling, ddc:530, Instrumentation
Abstract

A prototype string for the future km3-scale Baikal neutrino telescope has been deployed in April, 2008 and is fully integrated into the NT200+ telescope. All basic string elements - optical modules (with 12"/13" hemispherical photomultipliers), 200MHz FADC readout and calibration system - have been redesigned following experience with NT200+. First results of in-situ operation of this prototype string are presented., Comment: 8 pages, 15 figures; presented at VLVNT08 (Very Large Volume Neutrino Telescope) Workshop, Toulon, France, April, 2008; to appear in NIM-A

Published
2008

42. A DEVICE FOR DETECTION OF ACOUSTIC SIGNALS FROM SUPER HIGH ENERGY NEUTRINOS

Author

Yu. V. Parfenov, A.G. Chensky, D. P. Petuhov, O. A. Gress, A. I. Panfilov, S. V. Fialkovski, V. A. Poleschuk, B.A. Tarashansky, E. A. Osipova, D. Borschev, T. Mikolajski, M.I. Rozanov, A. A. Pavlov, B. K. Lubsandorzhiev, E.N. Pliskovsky, A. M. Klabukov, N. M. Budnev, K. V. Burmistrov, A. A. Doroshenko, V. V. Prosin, E.G. Popova, M.B. Milenin, L. A. Kuzmichev, S. Mikheyev, I. A. Belolaptikov, I. V. Yashin, V. M. Aynutdinov, R. Wischnewski, A. I. Klimov, Vy. Kuznetzov, L. B. Bezrukov, O. N. Gaponenko, G. Pan'kov, T. I. Gress, V. Yu. Rubtzov, A. V. Shirokov, Ya. Davidov, V.F. Kulepov, O. G. Grishin, A. Kochanov, R. R. Mirgazov, Zh. A. M. Djilkibaev, A.P. Koshechkin, V. A. Zhukov, L. V. Pankov, I. A. Danilchenko, A. N. Dyachok, K.V. Konischev, Ch. Spiering, R. V. Vasiljev, V.A. Balkanov, P. G. Pokhil, K.V. Golubkov, B. A. M. Shaibonov, and G.V. Domogatsky

Subjects
Physics, Nuclear and High Energy Physics, High energy, High energy particle, Physics::Instrumentation and Detectors, Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, Neutrino telescope, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, High Energy Physics::Experiment, ddc:530, Neutrino
Abstract

We present the design of a device for detection of acoustic signals from high energy particle showers. The module will be stationary installed above the Baikal Neutrino Telescope NT-200+.

Published
2006

43. High frequency noise in Lake Baikal as a background for the acoustic detection of high energy neutrinos

Author

G. Pan'kov, T. I. Gress, A. A. Pavlov, V. Yu. Rubtzov, A. V. Shirokov, A. Kochanov, R. R. Mirgazov, S. V. Fialkovski, V. A. Poleschuk, E. A. Osipova, L. B. Bezrukov, P. G. Pokhil, A.G. Chensky, O. G. Grishin, B. K. Lubsandorzhiev, B.A. Tarashansky, E.G. Popova, Ya. Davidov, R. V. Vasiljev, B. A. M. Shaibonov, I. A. Belolaptikov, E.N. Pliskovsky, I. A. Danilchenko, A. M. Klabukov, G.V. Domogatsky, K.V. Golubkov, I. V. Yashin, Vy. Kuznetzov, D. P. Petuhov, O. N. Gaponenko, A.P. Koshechkin, L. V. Pankov, N. M. Budnev, K. V. Burmistrov, V. M. Aynutdinov, V. A. Zhukov, R. Wischnewski, K.V. Konischev, M.B. Milenin, A. I. Klimov, V.A. Balkanov, Yu. V. Parfenov, O. A. Gress, A. N. Dyachok, Ch. Spiering, A. I. Panfilov, M.I. Rozanov, T. Mikolajski, A. A. Doroshenko, V.F. Kulepov, V. V. Prosin, Zh. A. M. Djilkibaev, L. A. Kuzmichev, S. Mikheyev, and D. Borschev

Subjects
Physics, Nuclear and High Energy Physics, High energy, Physics::Instrumentation and Detectors, Acoustics, Astronomy and Astrophysics, Interference (wave propagation), Atomic and Molecular Physics, and Optics, Noise, Amplitude, Neutrino detector, Correlation analysis, ddc:530, Neutrino, Frequency noise
Abstract

We review the ongoing work of the Baikal Collaboration on acoustic detection of super high energy neutrinos. Some results of the study of high frequency acoustic noise in Lake Baikal are presented. A lot of short impulses with different amplitudes and shapes were detected, which should be considered as a background for acoustic neutrino detection. However, most of the short impulses appear to be due to noise sound waves interference and can be eliminated by a correlation analysis. Only a few detected bipolar impulses probably were produced by quasi local sources.

Published
2006

44. The Tunka Experiment: Towards a 1-km^2 Cherenkov EAS Array in the Tunka Valley

Author

D. V. CHERNOV, N. N. KALMYKOV, E. E. KOROSTELEVA, L. A. KUZMICHEV, V. V. PROSIN, M. I. PANASYUK, A. V. SHIROKOV, I. V. YASHIN, N. M. BUDNEV, O. A. GRESS, L. V. PANKOV, YU. V. PARFENOV, YU. A. SEMENEY, B. K. LUBSANDORZHIEV, P. G. POKHIL, V. S. PTUSKIN, CH. SPIERING, R. WISCHNEWSKI, and G. NAVARRA

Subjects
Physics, Nuclear and High Energy Physics, Energy spectrum, Astrophysics (astro-ph), FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, Mass composition, Atomic and Molecular Physics, and Optics, Cherenkov radiation, Remote sensing
Abstract

The project of an EAS Cherenkov array in the Tunka valley/Siberia with an area of about 1 km^2 is presented. The new array will have a ten times bigger area than the existing Tunka-25 array and will permit a detailed study of the cosmic ray energy spectrum and the mass composition in the energy range from 10^15 to 10^18 eV., Comment: 3 pages, 2 figures, to be published in IJMPA

Published
2004
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45. Primary Energy Spectrum and Mass Composition Determined with the Tunka EAS Cherenkov Array

Author

E. E. Korosteleva, Yu. A. Semeney, N. M. Budnev, Dmitry Chernov, B. K. Lubsandorzhiev, V. V. Prosin, P. G. Pohil, Yu. V. Parfenov, R. Wischnewski, T. I. Gress, L. A. Kuzmichev, L. V. Pankov, C. Spiering, T. Schmidt, I. I. Yashin, and O. A. Gress

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Knee region, Mass composition, Atomic and Molecular Physics, and Optics, Computational physics, Full width at half maximum, Distribution function, Energy spectrum, Parametrization, Cherenkov radiation
Abstract

New results of 300 hours of operation of the Tunka array are presented. An improved parametrization of the Cherenkov light lateral distribution function (LDF), based on CORSIKA Monte Carlo simulations and the experiment QUEST, has been used for the reconstruction of EAS parameters. The corrected energy spectrum in the knee region is obtained. The mean depth of the EAS maximum has been derived both from the analysis of LDF steepness and the FWHM of Cerenkov light pulse. The mean mass composition around the knee is estimated., Comment: 3 pages, 3 figures, to be published in IJMPA

Published
2004
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